题解 | #求小球落地5次后所经历的路程和第5次反弹的高度#

import java.util.Scanner;

public class Main {
    //假设一个球从任意高度自由落下，每次落地后反跳回原高度的一半; 再落下, 求它在第5次落地时，共经历多少米?第5次反弹多高？
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
    
        while (in.hasNextInt()) {
            int h1 = in.nextInt();
            float h = h1 * 1.000000f;
            float sum5 = 0;
            for (int i = 0; i < 5; i++) {
                sum5 += h;
                h /= 2;
            }
            sum5 = sum5 * 2 - h1;
            System.out.println(sum5);
            System.out.println(h);
        }
    }
}